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https://issues.apache.org/jira/browse/HADOOP-18231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ahmar Suhail reassigned HADOOP-18231:
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Assignee: Ahmar Suhail
> tests in ITestS3AInputStreamPerformance are failing
> ----------------------------------------------------
>
> Key: HADOOP-18231
> URL: https://issues.apache.org/jira/browse/HADOOP-18231
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Ahmar Suhail
> Assignee: Ahmar Suhail
> Priority: Minor
>
> The following tests are failing when prefetching is enabled:
> testRandomIORandomPolicy - expects stream to be opened 4 times (once for
> every random read), but prefetching will only open twice.
> testDecompressionSequential128K - expects stream to be opened once, but
> prefetching will open once for each block the file has. landsat file used in
> the test has size 42MB, prefetching block size = 8MB, expected open count is
> 6.
> testReadWithNormalPolicy - same as above.
> testRandomIONormalPolicy - executes random IO, but with a normal policy.
> S3AInputStream will abort the stream and change the policy, prefetching
> handles random IO by caching blocks so doesn't do any of that.
> testRandomReadOverBuffer - multiple assertions failing here, also depends a
> lot on readAhead values, not very relevant for prefetching
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